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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_09623dfa51a61b2fbf8544d2a5f9ce36.html">tbb</a></li>  </ul>
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<a href="parallel__execution__tbb_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#ifndef GRPPI_TBB_PARALLEL_EXECUTION_TBB_H</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#define GRPPI_TBB_PARALLEL_EXECUTION_TBB_H</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifdef GRPPI_TBB</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &quot;../common/mpmc_queue.h&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;../common/iterator.h&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;../common/patterns.h&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;../common/farm_pattern.h&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;../common/execution_traits.h&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;tuple&gt;</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;tbb/tbb.h&gt;</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegrppi.html">grppi</a> {</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html">   44</a></span>&#160;<span class="keyword">class </span><a class="code" href="classgrppi_1_1parallel__execution__tbb.html">parallel_execution_tbb</a> {</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a2bafc840996ea0edf704ee9a4ec11fdb">   55</a></span>&#160;  <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a2bafc840996ea0edf704ee9a4ec11fdb">parallel_execution_tbb</a>() noexcept :</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;      <a class="code" href="classgrppi_1_1parallel__execution__tbb.html">parallel_execution_tbb</a>{default_concurrency_degree}</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  {}</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a42cd24e4cdc65f841211797f3bc7301c">   67</a></span>&#160;  <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a42cd24e4cdc65f841211797f3bc7301c">parallel_execution_tbb</a>(<span class="keywordtype">int</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a4658679d34e759c78eed069d60aa8f8b">concurrency_degree</a>, <span class="keywordtype">bool</span> order = <span class="keyword">true</span>) noexcept :</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;      concurrency_degree_{concurrency_degree},</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;      ordering_{order}</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  {}</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a80af61d77c7b697d90c17c203ace3ec1">   75</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a80af61d77c7b697d90c17c203ace3ec1">set_concurrency_degree</a>(<span class="keywordtype">int</span> degree) noexcept { concurrency_degree_ = degree; }</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a4658679d34e759c78eed069d60aa8f8b">   80</a></span>&#160;  <span class="keywordtype">int</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a4658679d34e759c78eed069d60aa8f8b">concurrency_degree</a>() const noexcept { <span class="keywordflow">return</span> concurrency_degree_; }</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a584023faab673f9b7e17cec70a41372c">   85</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a584023faab673f9b7e17cec70a41372c">enable_ordering</a>() noexcept { ordering_=<span class="keyword">true</span>; }</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a3b7d56625a7adbcade53a2f4e6052cda">   90</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a3b7d56625a7adbcade53a2f4e6052cda">disable_ordering</a>() noexcept { ordering_=<span class="keyword">false</span>; }</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#ac2e2457967b39b6514032a1f3684dfca">   95</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#ac2e2457967b39b6514032a1f3684dfca">is_ordered</a>() const noexcept { <span class="keywordflow">return</span> ordering_; }</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#af5306d4350ef41f22215375679f72ca6">  100</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#af5306d4350ef41f22215375679f72ca6">set_queue_attributes</a>(<span class="keywordtype">int</span> size, <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">queue_mode</a> mode, <span class="keywordtype">int</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">tokens</a>) noexcept {</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    queue_size_ = size;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    queue_mode_ = mode;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    num_tokens_ = <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">tokens</a>;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;  }</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#aa06e47a8d52617c761600c0e97db5055">  112</a></span>&#160;  <a class="code" href="classgrppi_1_1mpmc__queue.html">mpmc_queue&lt;T&gt;</a> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#aa06e47a8d52617c761600c0e97db5055">make_queue</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keywordflow">return</span> {queue_size_, queue_mode_};</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  }</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">  119</a></span>&#160;  <span class="keywordtype">int</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">tokens</a>() const noexcept { <span class="keywordflow">return</span> num_tokens_; }</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> OutputIterator, </div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;            <span class="keyword">typename</span> Transformer&gt;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a218c2f8349d86349a2189be85fe0ff8a">map</a>(std::tuple&lt;InputIterators...&gt; firsts,</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;      OutputIterator first_out, </div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;      std::size_t sequence_size, Transformer transform_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InputIterator, <span class="keyword">typename</span> Identity, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#ada3a6ccfbc59ff6d0b8c8ac1482d2bdc">reduce</a>(InputIterator first, std::size_t sequence_size, </div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;              Identity &amp;&amp; identity, Combiner &amp;&amp; combine_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> Identity, </div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;            <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a0b8825810902cd26927822dcff2aed49">map_reduce</a>(std::tuple&lt;InputIterators...&gt; firsts, </div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                  std::size_t sequence_size,</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                  Identity &amp;&amp; identity,</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                  Transformer &amp;&amp; transform_op, Combiner &amp;&amp; combine_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> OutputIterator,</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;            <span class="keyword">typename</span> StencilTransformer, <span class="keyword">typename</span> Neighbourhood&gt;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#afc48fec10970cf43ccf81cc7a232d577">stencil</a>(std::tuple&lt;InputIterators...&gt; firsts, OutputIterator first_out,</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;               std::size_t sequence_size,</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;               StencilTransformer &amp;&amp; transform_op,</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;               Neighbourhood &amp;&amp; neighbour_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;  [[deprecated(<span class="stringliteral">&quot;Use new interface with predicate argument&quot;</span>)]]</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(Input &amp;&amp; input, </div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;                      Divider &amp;&amp; divide_op, </div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;                      Solver &amp;&amp; solve_op, </div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;                      Combiner &amp;&amp; combine_op) <span class="keyword">const</span>; </div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er,<span class="keyword">typename</span> Predicate, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(Input &amp;&amp; input,</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;                      Divider &amp;&amp; divide_op,</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;                      Predicate &amp;&amp; predicate_op,</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;                      Solver &amp;&amp; solve_op,</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;                      Combiner &amp;&amp; combine_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Generator, <span class="keyword">typename</span> ... Transformers&gt;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a5bc27958f8f59e282f991704e308c8aa">pipeline</a>(Generator &amp;&amp; generate_op, </div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;                Transformers &amp;&amp; ... transform_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InputType, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> OutputType&gt;</div><div class="line"><a name="l00263"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a1cf84926d8770fdd828998872d76cedb">  263</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a1cf84926d8770fdd828998872d76cedb">pipeline</a>(<a class="code" href="classgrppi_1_1mpmc__queue.html">mpmc_queue&lt;InputType&gt;</a> &amp; input_queue, Transformer &amp;&amp; transform_op,</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;                <a class="code" href="classgrppi_1_1mpmc__queue.html">mpmc_queue&lt;OutputType&gt;</a> &amp; output_queue)<span class="keyword"> const</span></div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    ::std::atomic&lt;long&gt; order {0};</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a5bc27958f8f59e282f991704e308c8aa">pipeline</a>(</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;      [&amp;](){</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;        <span class="keyword">auto</span> item = input_queue.<a class="code" href="classgrppi_1_1mpmc__queue.html#aa4e63cc8a3cc2006494b11b739711f8e">pop</a>();</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;        <span class="keywordflow">if</span>(!item.first) input_queue.<a class="code" href="classgrppi_1_1mpmc__queue.html#aa18eda40dec95f4c568f5f40775e8e19">push</a>(item);</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;        <span class="keywordflow">return</span> item.first;</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;      },</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;      std::forward&lt;Transformer&gt;(transform_op),</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;      [&amp;](<span class="keyword">auto</span> &amp; item ){</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;        output_queue.<a class="code" href="classgrppi_1_1mpmc__queue.html#aa18eda40dec95f4c568f5f40775e8e19">push</a>(make_pair(<span class="keyword">typename</span> OutputType::first_type{item}, order.load())); </div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;        order++;</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;      }</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    );</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    output_queue.<a class="code" href="classgrppi_1_1mpmc__queue.html#aa18eda40dec95f4c568f5f40775e8e19">push</a>(make_pair(<span class="keyword">typename</span> OutputType::first_type{}, order.load())); </div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;    <span class="comment">//sequential_execution seq{};</span></div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;    <span class="comment">//seq.pipeline(input_queue, std::forward&lt;Transformer&gt;(transform_op), output_queue);</span></div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  }</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(Input &amp;&amp; input, </div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;                      Divider &amp;&amp; divide_op, </div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;                      Solver &amp;&amp; solve_op, </div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;                      Combiner &amp;&amp; combine_op,</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;                      std::atomic&lt;int&gt; &amp; num_threads) <span class="keyword">const</span>; </div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Predicate, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;  <span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(Input &amp;&amp; input,</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;                      Divider &amp;&amp; divide_op,</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;                      Predicate &amp;&amp; predicate_op,</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;                      Solver &amp;&amp; solve_op,</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;                      Combiner &amp;&amp; combine_op,</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;                      std::atomic&lt;int&gt; &amp; num_threads) <span class="keyword">const</span>;</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, </div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;            <a class="code" href="namespacegrppi.html#aefc4ab6149586d62bcb16b97bcefdd0a">requires_no_pattern&lt;Transformer&gt;</a> = 0&gt;</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;  <span class="keyword">auto</span> make_filter(Transformer &amp;&amp; transform_op) <span class="keyword">const</span>;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;            requires_no_pattern&lt;Transformer&gt; = 0&gt;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  <span class="keyword">auto</span> make_filter(Transformer &amp;&amp; transform_op,</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            <a class="code" href="namespacegrppi.html#a43af869a5c133642518967b6284525af">requires_farm&lt;Farm&lt;FarmTransformer&gt;</a>&gt; = 0&gt;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;  <span class="keyword">auto</span> make_filter(Farm&lt;FarmTransformer&gt; &amp; farm_obj)<span class="keyword"> const</span></div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(farm_obj));</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;  }</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;            requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  <span class="keyword">auto</span> make_filter(Farm&lt;FarmTransformer&gt; &amp;&amp; farm_obj) <span class="keyword">const</span>;</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Execution, <span class="keyword">typename</span> Transformer,</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt; <span class="keyword">class </span>Context,</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;            <a class="code" href="namespacegrppi.html#ad4b58959f8008485515060fe1a37fb21">requires_context&lt;Context&lt;Execution,Transformer&gt;</a>&gt; = 0&gt;</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;  <span class="keyword">auto</span> make_filter(Context&lt;Execution,Transformer&gt; &amp;&amp; context_op,</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;       OtherTransformers &amp;&amp;... other_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;     <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::forward&lt;Transformer&gt;(context_op.transformer()),</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;       std::forward&lt;OtherTransformers&gt;(other_ops)...);</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  }</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Execution, <span class="keyword">typename</span> Transformer,</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt; <span class="keyword">class </span>Context,</div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;            requires_context&lt;Context&lt;Execution,Transformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;  <span class="keyword">auto</span> make_filter(Context&lt;Execution,Transformer&gt; &amp; context_op,</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;       OtherTransformers &amp;&amp;... other_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(context_op),</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;      std::forward&lt;OtherTransformers&gt;(other_ops)...);</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;  }</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer, </div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;            requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;  <span class="keyword">auto</span> make_filter(Farm&lt;FarmTransformer&gt; &amp; filter_obj,</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(filter_obj),</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;  }</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer, </div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;            requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;  <span class="keyword">auto</span> make_filter(Farm&lt;FarmTransformer&gt; &amp;&amp; filter_obj,</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;            <a class="code" href="namespacegrppi.html#a14435182a5c6532b429e9e8f09e2da37">requires_filter&lt;Filter&lt;Predicate&gt;</a>&gt; = 0&gt;</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;  <span class="keyword">auto</span> make_filter(Filter&lt;Predicate&gt; &amp; filter_obj)<span class="keyword"> const</span></div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(filter_obj));</div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;  }</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;            requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;  <span class="keyword">auto</span> make_filter(Filter&lt;Predicate&gt; &amp;&amp; filter_obj) <span class="keyword">const</span>;</div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate, </div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;            requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;  <span class="keyword">auto</span> make_filter(Filter&lt;Predicate&gt; &amp; filter_obj,</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(filter_obj),</div><div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;  }</div><div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;</div><div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate, </div><div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;            requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;  <span class="keyword">auto</span> make_filter(Filter&lt;Predicate&gt; &amp;&amp; filter_obj,</div><div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;</div><div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity,</div><div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> I&gt; <span class="keyword">class </span>Reduce,</div><div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;            <a class="code" href="namespacegrppi.html#a4f2ec5252b5fe6ed39a5a3c501b70732">requires_reduce&lt;Reduce&lt;Combiner,Identity&gt;</a>&gt; = 0&gt;</div><div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;  <span class="keyword">auto</span> make_filter(Reduce&lt;Combiner,Identity&gt; &amp; reduce_obj,</div><div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(reduce_obj),</div><div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;  };</div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;</div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity,</div><div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> I&gt; <span class="keyword">class </span>Reduce,</div><div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;            requires_reduce&lt;Reduce&lt;Combiner,Identity&gt;&gt; = 0&gt;</div><div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;  <span class="keyword">auto</span> make_filter(Reduce&lt;Combiner,Identity&gt; &amp;&amp; reduce_obj,</div><div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;</div><div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;            <a class="code" href="namespacegrppi.html#a9b2e3d6c560a1b30144d31c6dd7e568e">requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;</a>&gt; =0,</div><div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;            requires_no_pattern&lt;Transformer&gt; =0&gt;</div><div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;  <span class="keyword">auto</span> make_filter(Iteration&lt;Transformer,Predicate&gt; &amp; iteration_obj,</div><div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(iteration_obj),</div><div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;  }</div><div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;</div><div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;            requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt; =0,</div><div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;            requires_no_pattern&lt;Transformer&gt; =0&gt;</div><div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;  <span class="keyword">auto</span> make_filter(Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;</div><div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;            requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt; =0,</div><div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;            <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline&lt;Transformer&gt;</a> =0&gt;</div><div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;  <span class="keyword">auto</span> make_filter(Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;                   OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;</div><div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Pipeline,</div><div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;            <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline</a>&lt;Pipeline&lt;Transformers...&gt;&gt; = 0&gt;</div><div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;  <span class="keyword">auto</span> make_filter(Pipeline&lt;Transformers...&gt; &amp; pipeline_obj,</div><div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(std::move(pipeline_obj),</div><div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;  }</div><div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;</div><div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Pipeline,</div><div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;            <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline</a>&lt;Pipeline&lt;Transformers...&gt;&gt; = 0&gt;</div><div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;  <span class="keyword">auto</span> make_filter(Pipeline&lt;Transformers...&gt; &amp;&amp; pipeline_obj,</div><div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) <span class="keyword">const</span>;</div><div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;</div><div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;            std::size_t ... I&gt;</div><div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;  <span class="keyword">auto</span> make_filter_nested(std::tuple&lt;Transformers...&gt; &amp;&amp; transform_ops,</div><div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;      std::index_sequence&lt;I...&gt;) <span class="keyword">const</span>;</div><div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;</div><div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;</div><div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;  constexpr <span class="keyword">static</span> <span class="keywordtype">int</span> default_concurrency_degree = 4;</div><div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;  <span class="keywordtype">int</span> concurrency_degree_ = default_concurrency_degree;</div><div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;</div><div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;  <span class="keywordtype">bool</span> ordering_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;</div><div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;  constexpr <span class="keyword">static</span> <span class="keywordtype">int</span> default_queue_size = 100;</div><div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;  <span class="keywordtype">int</span> queue_size_ = default_queue_size;</div><div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;</div><div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;  constexpr <span class="keyword">static</span> <span class="keywordtype">int</span> default_num_tokens_ = 100;</div><div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;  <span class="keywordtype">int</span> num_tokens_ = default_num_tokens_;</div><div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;</div><div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;  <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">queue_mode</a> queue_mode_ = <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d">queue_mode::blocking</a>;</div><div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;};</div><div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;</div><div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> E&gt;</div><div class="line"><a name="l00486"></a><span class="lineno"><a class="line" href="namespacegrppi.html#afb9c59d0d8356f37f2a09fafd6e70726">  486</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#afb9c59d0d8356f37f2a09fafd6e70726">is_parallel_execution_tbb</a>() {</div><div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;  <span class="keywordflow">return</span> std::is_same&lt;E, parallel_execution_tbb&gt;::value;</div><div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;}</div><div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;</div><div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a9a3a77a7ec35389029d4f5e35d03b5cf">  495</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#a9a3a77a7ec35389029d4f5e35d03b5cf">is_supported&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;</div><div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00502"></a><span class="lineno"><a class="line" href="namespacegrppi.html#ae98c8a81da78b6914d9162ae771cd180">  502</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#ae98c8a81da78b6914d9162ae771cd180">supports_map&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;</div><div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00509"></a><span class="lineno"><a class="line" href="namespacegrppi.html#adc1d261888fc60233b1289900778005a">  509</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#adc1d261888fc60233b1289900778005a">supports_reduce&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;</div><div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00516"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a6276d4cd16e1e275b617aecdc8a098e4">  516</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#a6276d4cd16e1e275b617aecdc8a098e4">supports_map_reduce&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;</div><div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00523"></a><span class="lineno"><a class="line" href="namespacegrppi.html#af2dc49cfedd90c66ef95daef9624f2ac">  523</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#af2dc49cfedd90c66ef95daef9624f2ac">supports_stencil&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;</div><div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00530"></a><span class="lineno"><a class="line" href="namespacegrppi.html#ad41d712f7093e084a84e1ea7904ddda9">  530</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#ad41d712f7093e084a84e1ea7904ddda9">supports_divide_conquer&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;</div><div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00537"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a520e1d8937fb6e0afb6e6189bd382835">  537</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#a520e1d8937fb6e0afb6e6189bd382835">supports_pipeline&lt;parallel_execution_tbb&gt;</a>() { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;</div><div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> OutputIterator, </div><div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;          <span class="keyword">typename</span> Transformer&gt;</div><div class="line"><a name="l00541"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a218c2f8349d86349a2189be85fe0ff8a">  541</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a218c2f8349d86349a2189be85fe0ff8a">parallel_execution_tbb::map</a>(</div><div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;    std::tuple&lt;InputIterators...&gt; firsts,</div><div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;    OutputIterator first_out, </div><div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;    std::size_t sequence_size, Transformer transform_op)<span class="keyword"> const</span></div><div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;  tbb::parallel_for(</div><div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;    std::size_t{0}, sequence_size, </div><div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;    [&amp;] (std::size_t index){</div><div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;      first_out[index] = <a class="code" href="namespacegrppi.html#ae2cebb801cfe8aeed12ff8d90c3b9dd0">apply_iterators_indexed</a>(transform_op, firsts, index);</div><div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;    }</div><div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160; );   </div><div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;</div><div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;}</div><div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;</div><div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> InputIterator, <span class="keyword">typename</span> Identity, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00556"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#ada3a6ccfbc59ff6d0b8c8ac1482d2bdc">  556</a></span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#ada3a6ccfbc59ff6d0b8c8ac1482d2bdc">parallel_execution_tbb::reduce</a>(</div><div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;    InputIterator first, </div><div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;    std::size_t sequence_size,</div><div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;    Identity &amp;&amp; identity,</div><div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;    Combiner &amp;&amp; combine_op)<span class="keyword"> const</span></div><div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;  constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq;</div><div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;  <span class="keywordflow">return</span> tbb::parallel_reduce(</div><div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;      tbb::blocked_range&lt;InputIterator&gt;(first, std::next(first,sequence_size)),</div><div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;      identity,</div><div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;      [combine_op,seq](<span class="keyword">const</span> <span class="keyword">auto</span> &amp; range, <span class="keyword">auto</span> value) {</div><div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;        <span class="keywordflow">return</span> seq.reduce(range.begin(), range.size(), value, combine_op);</div><div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;      },</div><div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;      combine_op);</div><div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;}</div><div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;</div><div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> Identity, </div><div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;          <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00574"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a0b8825810902cd26927822dcff2aed49">  574</a></span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a0b8825810902cd26927822dcff2aed49">parallel_execution_tbb::map_reduce</a>(</div><div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;    std::tuple&lt;InputIterators...&gt; firsts,</div><div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;    std::size_t sequence_size,</div><div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;    Identity &amp;&amp; identity,</div><div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;    Transformer &amp;&amp; transform_op, Combiner &amp;&amp; combine_op)<span class="keyword"> const</span></div><div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;  constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq;</div><div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;  tbb::task_group g;</div><div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;</div><div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a64dd705d0f32b64d20dba8d5b9cebbbe">result_type</a> = std::decay_t&lt;Identity&gt;;</div><div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;  std::vector&lt;result_type&gt; partial_results(concurrency_degree_);</div><div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;</div><div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;  <span class="keyword">auto</span> process_chunk = [&amp;](<span class="keyword">auto</span> fins, std::size_t sz, std::size_t i) {</div><div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;    partial_results[i] = seq.map_reduce(fins, sz,</div><div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;        std::forward&lt;result_type&gt;(partial_results[i]),</div><div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;        std::forward&lt;Transformer&gt;(transform_op), </div><div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;        std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;  };</div><div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;</div><div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> chunk_size = sequence_size/concurrency_degree_;</div><div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;</div><div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0; i&lt;concurrency_degree_-1;++i) {    </div><div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;    <span class="keyword">const</span> <span class="keyword">auto</span> delta = chunk_size * i;</div><div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;    <span class="keyword">const</span> <span class="keyword">auto</span> chunk_firsts = <a class="code" href="namespacegrppi.html#ab39b26ce38bba1d96af530ebcd807693">iterators_next</a>(firsts,delta);</div><div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;    <span class="keyword">const</span> <span class="keyword">auto</span> chunk_last = std::next(std::get&lt;0&gt;(chunk_firsts), chunk_size);</div><div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;</div><div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;    g.run([&amp;, chunk_firsts, chunk_last, i]() {</div><div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;      process_chunk(chunk_firsts, chunk_size, i);</div><div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;    });</div><div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;  }</div><div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;</div><div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> delta = chunk_size * (concurrency_degree_ - 1);</div><div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> chunk_firsts = <a class="code" href="namespacegrppi.html#ab39b26ce38bba1d96af530ebcd807693">iterators_next</a>(firsts,delta);</div><div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;  process_chunk(chunk_firsts, sequence_size - delta, concurrency_degree_-1);</div><div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;</div><div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;  g.wait(); </div><div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;</div><div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;  <span class="keywordflow">return</span> seq.reduce(std::next(partial_results.begin()), </div><div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;      partial_results.size()-1, std::forward&lt;result_type&gt;(partial_results[0]), </div><div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;      std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;}</div><div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;</div><div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ... InputIterators, <span class="keyword">typename</span> OutputIterator,</div><div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;          <span class="keyword">typename</span> StencilTransformer, <span class="keyword">typename</span> Neighbourhood&gt;</div><div class="line"><a name="l00618"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#afc48fec10970cf43ccf81cc7a232d577">  618</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#afc48fec10970cf43ccf81cc7a232d577">parallel_execution_tbb::stencil</a>(</div><div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;    std::tuple&lt;InputIterators...&gt; firsts, OutputIterator first_out,</div><div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;    std::size_t sequence_size,</div><div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;    StencilTransformer &amp;&amp; transform_op,</div><div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;    Neighbourhood &amp;&amp; neighbour_op)<span class="keyword"> const</span></div><div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;  constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq{};</div><div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> chunk_size = sequence_size / concurrency_degree_;</div><div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;  <span class="keyword">auto</span> process_chunk = [&amp;](<span class="keyword">auto</span> f, std::size_t sz, std::size_t delta) {</div><div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;    seq.stencil(f, std::next(first_out,delta), sz,</div><div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;      std::forward&lt;StencilTransformer&gt;(transform_op),</div><div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;      std::forward&lt;Neighbourhood&gt;(neighbour_op));</div><div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;  };</div><div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;</div><div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;  tbb::task_group g;</div><div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;concurrency_degree_-1; ++i) {</div><div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;    g.run([=](){</div><div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;      <span class="keyword">const</span> <span class="keyword">auto</span> delta = chunk_size * i;</div><div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;      <span class="keyword">const</span> <span class="keyword">auto</span> chunk_firsts = <a class="code" href="namespacegrppi.html#ab39b26ce38bba1d96af530ebcd807693">iterators_next</a>(firsts,delta);</div><div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;      process_chunk(chunk_firsts, chunk_size, delta);</div><div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;    });</div><div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;  }</div><div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;</div><div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> delta = chunk_size * (concurrency_degree_ - 1);</div><div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> chunk_firsts = <a class="code" href="namespacegrppi.html#ab39b26ce38bba1d96af530ebcd807693">iterators_next</a>(firsts,delta);</div><div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;  <span class="keyword">const</span> <span class="keyword">auto</span> chunk_last = std::next(std::get&lt;0&gt;(firsts), sequence_size);</div><div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;  process_chunk(chunk_firsts, </div><div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;      std::distance(std::get&lt;0&gt;(chunk_firsts), chunk_last), delta);</div><div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;</div><div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;  g.wait();</div><div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;}</div><div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;</div><div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00651"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">  651</a></span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">parallel_execution_tbb::divide_conquer</a>(</div><div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;    Input &amp;&amp; input, </div><div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;    Divider &amp;&amp; divide_op, </div><div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;    Solver &amp;&amp; solve_op, </div><div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;    Combiner &amp;&amp; combine_op)<span class="keyword"> const</span></div><div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;  std::atomic&lt;int&gt; num_threads{concurrency_degree_-1};</div><div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(input), </div><div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;        std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Solver&gt;(solve_op), </div><div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;        std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;}</div><div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;</div><div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Predicate, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00664"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#aff612d68d6de326896b4b3b7f17275df">  664</a></span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">parallel_execution_tbb::divide_conquer</a>(</div><div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;    Input &amp;&amp; input,</div><div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;    Divider &amp;&amp; divide_op,</div><div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;    Predicate &amp;&amp; predicate_op,</div><div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;    Solver &amp;&amp; solve_op,</div><div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;    Combiner &amp;&amp; combine_op)<span class="keyword"> const</span></div><div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;  std::atomic&lt;int&gt; num_threads{concurrency_degree_-1};</div><div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(input),</div><div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;        std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Predicate&gt;(predicate_op),</div><div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;        std::forward&lt;Solver&gt;(solve_op),</div><div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;        std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;}</div><div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;</div><div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;</div><div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Generator, <span class="keyword">typename</span> ... Transformers&gt;</div><div class="line"><a name="l00680"></a><span class="lineno"><a class="line" href="classgrppi_1_1parallel__execution__tbb.html#a5bc27958f8f59e282f991704e308c8aa">  680</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a5bc27958f8f59e282f991704e308c8aa">parallel_execution_tbb::pipeline</a>(</div><div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;    Generator &amp;&amp; generate_op, </div><div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;    Transformers &amp;&amp; ... transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;</div><div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a64dd705d0f32b64d20dba8d5b9cebbbe">result_type</a> = decay_t&lt;typename result_of&lt;Generator()&gt;::type&gt;;</div><div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a2c33363c4c49ab510560a0b880d52bfc">output_value_type</a> = <span class="keyword">typename</span> result_type::value_type;</div><div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;  <span class="keyword">using</span> output_type = optional&lt;output_value_type&gt;;</div><div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;</div><div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;  <span class="keyword">auto</span> generator = tbb::make_filter&lt;void, output_type&gt;(</div><div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;    tbb::filter::serial_in_order, </div><div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;    [&amp;](tbb::flow_control &amp; fc) -&gt; output_type {</div><div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;      <span class="keyword">auto</span> item =  generate_op();</div><div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;      <span class="keywordflow">if</span> (item) {</div><div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;        <span class="keywordflow">return</span> *item;</div><div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;      }</div><div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;      <span class="keywordflow">else</span> {</div><div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;        fc.stop();</div><div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;        <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;      }</div><div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;    }</div><div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;  );</div><div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;</div><div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;  <span class="keyword">auto</span> rest =</div><div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;    this-&gt;<span class="keyword">template</span> make_filter&lt;output_value_type&gt;(forward&lt;Transformers&gt;(transform_ops)...);</div><div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;</div><div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;</div><div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;  tbb::task_group_context context;</div><div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;  tbb::parallel_pipeline(<a class="code" href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">tokens</a>(), </div><div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;    generator</div><div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;    &amp; </div><div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;    rest);</div><div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;}</div><div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;</div><div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;<span class="comment">// PRIVATE MEMBERS</span></div><div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;</div><div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">parallel_execution_tbb::divide_conquer</a>(</div><div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;    Input &amp;&amp; input, </div><div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;    Divider &amp;&amp; divide_op, </div><div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;    Solver &amp;&amp; solve_op, </div><div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;    Combiner &amp;&amp; combine_op,</div><div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;    std::atomic&lt;int&gt; &amp; num_threads)<span class="keyword"> const</span></div><div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;  constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq;</div><div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;</div><div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;  <span class="keywordflow">if</span> (num_threads.load()&lt;=0) {</div><div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;    <span class="keywordflow">return</span> seq.<a class="code" href="classgrppi_1_1sequential__execution.html#a5b2e9b3427ba153715b527e795a296aa">divide_conquer</a>(std::forward&lt;Input&gt;(input), </div><div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;        std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Solver&gt;(solve_op), </div><div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;        std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;  }</div><div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;</div><div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;  <span class="keyword">auto</span> subproblems = divide_op(std::forward&lt;Input&gt;(input));</div><div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;</div><div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;  <span class="keywordflow">if</span> (subproblems.size()&lt;=1) { <span class="keywordflow">return</span> solve_op(std::forward&lt;Input&gt;(input)); }</div><div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;</div><div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;  <span class="keyword">using</span> subresult_type = std::decay_t&lt;typename std::result_of&lt;Solver(Input)&gt;::type&gt;;</div><div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;  std::vector&lt;subresult_type&gt; partials(subproblems.size()-1);</div><div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;  <span class="keywordtype">int</span> division = 0;</div><div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;</div><div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;  tbb::task_group g;</div><div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;  <span class="keyword">auto</span> i = subproblems.begin()+1;</div><div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;  <span class="keywordflow">while</span> (i!=subproblems.end() &amp;&amp; num_threads.load()&gt;0) {</div><div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;    g.run([&amp;,<span class="keyword">this</span>,it=i++,div=division++]() {</div><div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;        partials[div] = this-&gt;<a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(*it), </div><div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;            std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Solver&gt;(solve_op), </div><div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;            std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;    });</div><div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;    num_threads--;</div><div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;  }</div><div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;</div><div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;  <span class="comment">//Main thread works on the first subproblem.</span></div><div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;  <span class="keywordflow">while</span> (i != subproblems.end()){</div><div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;    partials[division] = seq.divide_conquer(std::forward&lt;Input&gt;(*i++), </div><div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;        std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Solver&gt;(solve_op), </div><div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;        std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;  }</div><div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;</div><div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;  <span class="keyword">auto</span> out = <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(*subproblems.begin()),  </div><div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;      std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Solver&gt;(solve_op), </div><div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;      std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;</div><div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;  g.wait();</div><div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;</div><div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;  <span class="keywordflow">return</span> seq.reduce(partials.begin(), partials.size(), </div><div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;      std::forward&lt;subresult_type&gt;(out), std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;}</div><div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;</div><div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Div<span class="keywordtype">id</span>er, <span class="keyword">typename</span> Predicate, <span class="keyword">typename</span> Solver, <span class="keyword">typename</span> Combiner&gt;</div><div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;<span class="keyword">auto</span> <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">parallel_execution_tbb::divide_conquer</a>(</div><div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;    Input &amp;&amp; input,</div><div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;    Divider &amp;&amp; divide_op,</div><div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;    Predicate &amp;&amp; predicate_op,</div><div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;    Solver &amp;&amp; solve_op,</div><div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;    Combiner &amp;&amp; combine_op,</div><div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;    std::atomic&lt;int&gt; &amp; num_threads)<span class="keyword"> const</span></div><div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;  constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq;</div><div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;</div><div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;  <span class="keywordflow">if</span> (num_threads.load()&lt;=0) {</div><div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;    <span class="keywordflow">return</span> seq.<a class="code" href="classgrppi_1_1sequential__execution.html#a5b2e9b3427ba153715b527e795a296aa">divide_conquer</a>(std::forward&lt;Input&gt;(input),</div><div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;        std::forward&lt;Divider&gt;(divide_op),std::forward&lt;Predicate&gt;(predicate_op),</div><div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;        std::forward&lt;Solver&gt;(solve_op),</div><div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;        std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;  }</div><div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;</div><div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;</div><div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;  <span class="keywordflow">if</span> (predicate_op(input)) { <span class="keywordflow">return</span> solve_op(std::forward&lt;Input&gt;(input)); }</div><div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;  <span class="keyword">auto</span> subproblems = divide_op(std::forward&lt;Input&gt;(input));</div><div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;</div><div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;  <span class="keyword">using</span> subresult_type = std::decay_t&lt;typename std::result_of&lt;Solver(Input)&gt;::type&gt;;</div><div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;  std::vector&lt;subresult_type&gt; partials(subproblems.size()-1);</div><div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;  <span class="keywordtype">int</span> division = 0;</div><div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;</div><div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;  tbb::task_group g;</div><div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;  <span class="keyword">auto</span> i = subproblems.begin()+1;</div><div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;  <span class="keywordflow">while</span> (i!=subproblems.end() &amp;&amp; num_threads.load()&gt;0) {</div><div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;    g.run([&amp;,<span class="keyword">this</span>,it=i++,div=division++]() {</div><div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;        partials[div] = this-&gt;<a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(*it),</div><div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;            std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Predicate&gt;(predicate_op),</div><div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;            std::forward&lt;Solver&gt;(solve_op),</div><div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;            std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;    });</div><div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;    num_threads--;</div><div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;  }</div><div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;</div><div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;  <span class="comment">//Main thread works on the first subproblem.</span></div><div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;  <span class="keywordflow">while</span> (i != subproblems.end()){</div><div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;    partials[division] = seq.divide_conquer(std::forward&lt;Input&gt;(*i++),</div><div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;        std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Predicate&gt;(predicate_op),</div><div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;        std::forward&lt;Solver&gt;(solve_op),</div><div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;        std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;  }</div><div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;</div><div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;  <span class="keyword">auto</span> out = <a class="code" href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">divide_conquer</a>(std::forward&lt;Input&gt;(*subproblems.begin()),</div><div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;      std::forward&lt;Divider&gt;(divide_op), std::forward&lt;Predicate&gt;(predicate_op), std::forward&lt;Solver&gt;(solve_op),</div><div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;      std::forward&lt;Combiner&gt;(combine_op), num_threads);</div><div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;</div><div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;  g.wait();</div><div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;</div><div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;  <span class="keywordflow">return</span> seq.reduce(partials.begin(), partials.size(),</div><div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;      std::forward&lt;subresult_type&gt;(out), std::forward&lt;Combiner&gt;(combine_op));</div><div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;}</div><div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;</div><div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer,</div><div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;          <a class="code" href="namespacegrppi.html#aefc4ab6149586d62bcb16b97bcefdd0a">requires_no_pattern&lt;Transformer&gt;</a>&gt;</div><div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160;    Transformer &amp;&amp; transform_op)<span class="keyword"> const</span></div><div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;</div><div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;  <span class="keyword">using</span> input_value_type = Input; </div><div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;</div><div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, void&gt;( </div><div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;      tbb::filter::serial_in_order, </div><div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;      [=](gen_value_type item) {</div><div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;          <span class="keywordflow">if</span> (item) transform_op(*item);</div><div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;      });</div><div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;}</div><div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;</div><div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;          <a class="code" href="namespacegrppi.html#aefc4ab6149586d62bcb16b97bcefdd0a">requires_no_pattern&lt;Transformer&gt;</a>&gt;</div><div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;    Transformer &amp;&amp; transform_op,</div><div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;</div><div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;  <span class="keyword">using</span> input_value_type = Input; </div><div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;  static_assert(!is_void&lt;input_value_type&gt;::value, </div><div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;      <span class="stringliteral">&quot;Transformer must take non-void argument&quot;</span>);</div><div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a2c33363c4c49ab510560a0b880d52bfc">output_value_type</a> = </div><div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;    decay_t&lt;typename result_of&lt;Transformer(input_value_type)&gt;::type&gt;;</div><div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;  static_assert(!is_void&lt;output_value_type&gt;::value,</div><div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;      <span class="stringliteral">&quot;Transformer must return a non-void result&quot;</span>);</div><div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;  <span class="keyword">using</span> output_type = optional&lt;output_value_type&gt;;</div><div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;</div><div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;</div><div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;  <span class="keywordflow">return</span> </div><div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;      tbb::make_filter&lt;gen_value_type, output_type&gt;(</div><div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;          tbb::filter::serial_in_order, </div><div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;          [=](gen_value_type item) -&gt; output_type {</div><div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;              <span class="keywordflow">if</span> (item) <span class="keywordflow">return</span> transform_op(*item);</div><div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;              <span class="keywordflow">else</span> <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;          })</div><div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;    &amp;</div><div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;      this-&gt;<span class="keyword">template</span> make_filter&lt;output_value_type&gt;(</div><div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;          std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;}</div><div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;</div><div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;          <a class="code" href="namespacegrppi.html#a43af869a5c133642518967b6284525af">requires_farm&lt;Farm&lt;FarmTransformer&gt;</a>&gt;&gt;</div><div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;    Farm&lt;FarmTransformer&gt; &amp;&amp; farm_obj)<span class="keyword"> const</span></div><div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;</div><div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;  <span class="keyword">using</span> input_value_type = Input; </div><div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;</div><div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, void&gt;(</div><div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160;      tbb::filter::parallel,</div><div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;      [=](gen_value_type item) {</div><div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;        <span class="keywordflow">if</span> (item) farm_obj(*item);</div><div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;      });</div><div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;}</div><div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;</div><div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer, </div><div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;          <a class="code" href="namespacegrppi.html#a43af869a5c133642518967b6284525af">requires_farm&lt;Farm&lt;FarmTransformer&gt;</a>&gt;&gt;</div><div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;    Farm&lt;FarmTransformer&gt; &amp;&amp; farm_obj,</div><div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;</div><div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;  <span class="keyword">using</span> input_value_type = Input;</div><div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;  static_assert(!is_void&lt;input_value_type&gt;::value, </div><div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;      <span class="stringliteral">&quot;Farm must take non-void argument&quot;</span>);</div><div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a2c33363c4c49ab510560a0b880d52bfc">output_value_type</a> = decay_t&lt;typename result_of&lt;FarmTransformer(input_value_type)&gt;::type&gt;;</div><div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;  static_assert(!is_void&lt;output_value_type&gt;::value,</div><div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;      <span class="stringliteral">&quot;Farm must return a non-void result&quot;</span>);</div><div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;  <span class="keyword">using</span> output_type = optional&lt;output_value_type&gt;;</div><div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;</div><div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, output_type&gt;(</div><div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;      tbb::filter::parallel,</div><div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;      [&amp;](gen_value_type item) -&gt; output_type {</div><div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;        <span class="keywordflow">if</span> (item) <span class="keywordflow">return</span> farm_obj(*item);</div><div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;      })</div><div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160;    &amp;</div><div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;      this-&gt;<span class="keyword">template</span> make_filter&lt;output_value_type&gt;(</div><div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;          std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;}</div><div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;</div><div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;          <a class="code" href="namespacegrppi.html#a14435182a5c6532b429e9e8f09e2da37">requires_filter&lt;Filter&lt;Predicate&gt;</a>&gt;&gt;</div><div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;    Filter&lt;Predicate&gt; &amp;&amp; farm_obj)<span class="keyword"> const</span></div><div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;</div><div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;  <span class="keyword">using</span> input_value_type = Input; </div><div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;</div><div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, void&gt;(</div><div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;      tbb::filter::parallel,</div><div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;      [=](gen_value_type item) {</div><div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;        <span class="keywordflow">if</span> (item) filter_obj(*item);</div><div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;      });</div><div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;}</div><div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160;</div><div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate, </div><div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;          <a class="code" href="namespacegrppi.html#a14435182a5c6532b429e9e8f09e2da37">requires_filter&lt;Filter&lt;Predicate&gt;</a>&gt;&gt;</div><div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;    Filter&lt;Predicate&gt; &amp;&amp; filter_obj,</div><div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;</div><div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;  <span class="keyword">using</span> input_value_type = Input;</div><div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;  static_assert(!is_void&lt;input_value_type&gt;::value, </div><div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;      <span class="stringliteral">&quot;Filter must take non-void argument&quot;</span>);</div><div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;</div><div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, gen_value_type&gt;(</div><div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;      tbb::filter::parallel,</div><div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;      [&amp;](gen_value_type item) -&gt; gen_value_type {</div><div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;        <span class="keywordflow">if</span> (item &amp;&amp; filter_obj(*item)) <span class="keywordflow">return</span> item;</div><div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;      })</div><div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160;    &amp;</div><div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;      this-&gt;<span class="keyword">template</span> make_filter&lt;input_value_type&gt;(</div><div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160;          std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160;}</div><div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;</div><div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity,</div><div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> I&gt; <span class="keyword">class </span>Reduce,</div><div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;          <a class="code" href="namespacegrppi.html#a4f2ec5252b5fe6ed39a5a3c501b70732">requires_reduce&lt;Reduce&lt;Combiner,Identity&gt;</a>&gt;&gt;</div><div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;    Reduce&lt;Combiner,Identity&gt; &amp;&amp; reduce_obj,</div><div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;</div><div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;  <span class="keyword">using</span> input_value_type = Input;</div><div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160;</div><div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160;  std::atomic&lt;long int&gt; order{0};</div><div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, gen_value_type&gt;(</div><div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160;      tbb::filter::serial,</div><div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160;      [&amp;, it=std::vector&lt;input_value_type&gt;(), rem=0](gen_value_type item) -&gt; gen_value_type {</div><div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;        <span class="keywordflow">if</span> (!item) <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;        reduce_obj.add_item(std::forward&lt;Identity&gt;(*item));</div><div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;        <span class="keywordflow">if</span> (reduce_obj.reduction_needed()) {</div><div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;            constexpr <a class="code" href="classgrppi_1_1sequential__execution.html">sequential_execution</a> seq;</div><div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;            <span class="keywordflow">return</span> reduce_obj.reduce_window(seq);</div><div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;        }</div><div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;        <span class="keywordflow">return</span> {};</div><div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160;      })</div><div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;    &amp;</div><div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;      this-&gt;<span class="keyword">template</span> make_filter&lt;input_value_type&gt;(</div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160;          std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;}</div><div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;</div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160;          <a class="code" href="namespacegrppi.html#a9b2e3d6c560a1b30144d31c6dd7e568e">requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;</a>&gt;,</div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;          <a class="code" href="namespacegrppi.html#aefc4ab6149586d62bcb16b97bcefdd0a">requires_no_pattern&lt;Transformer&gt;</a>&gt;</div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;    Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;  <span class="keyword">using namespace </span>experimental;</div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;</div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;  <span class="keyword">using</span> input_value_type = Input;</div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;  <span class="keyword">using</span> gen_value_type = optional&lt;input_value_type&gt;;</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;</div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;  <span class="keywordflow">return</span> tbb::make_filter&lt;gen_value_type, gen_value_type&gt;(</div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;      tbb::filter::serial,</div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;      [&amp;](gen_value_type item) -&gt; gen_value_type {</div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;        <span class="keywordflow">if</span> (!item) <span class="keywordflow">return</span> {};</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;        <span class="keywordflow">do</span> {</div><div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;          item = iteration_obj.transform(*item);</div><div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;        } <span class="keywordflow">while</span> (!iteration_obj.predicate(*item));</div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;        <span class="keywordflow">return</span> item;</div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;      })</div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;    &amp;</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;      this-&gt;<span class="keyword">template</span> make_filter&lt;input_value_type&gt;(</div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;          std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;}</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;</div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160;          requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt;,</div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;          <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline&lt;Transformer&gt;</a>&gt;</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;    Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160;  static_assert(!is_pipeline&lt;Transformer&gt;, <span class="stringliteral">&quot;Not implemented&quot;</span>);</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;}</div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160;</div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;</div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Pipeline,</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;          <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline</a>&lt;Pipeline&lt;Transformers...&gt;&gt;&gt;</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter(</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;    Pipeline&lt;Transformers...&gt; &amp;&amp; pipeline_obj,</div><div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160;    OtherTransformers &amp;&amp; ... other_transform_ops)<span class="keyword"> const</span></div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160;  <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter_nested&lt;Input&gt;(</div><div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;      std::tuple_cat(pipeline_obj.transformers(), </div><div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;          std::forward_as_tuple(other_transform_ops...)),</div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160;      std::make_index_sequence&lt;<span class="keyword">sizeof</span>...(Transformers)+<span class="keyword">sizeof</span>...(OtherTransformers)&gt;());</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;}</div><div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160;</div><div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;          std::size_t ... I&gt;</div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;<span class="keyword">auto</span> parallel_execution_tbb::make_filter_nested(</div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;    std::tuple&lt;Transformers...&gt; &amp;&amp; transform_ops,</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;    std::index_sequence&lt;I...&gt;)<span class="keyword"> const</span></div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;  <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> make_filter&lt;Input&gt;(</div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;      std::forward&lt;Transformers&gt;(std::get&lt;I&gt;(transform_ops))...);</div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;}</div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;</div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160;</div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;} <span class="comment">// end namespace grppi</span></div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;</div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;<span class="preprocessor">#else // GRPPI_TBB not defined</span></div><div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;</div><div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegrppi.html">grppi</a> {</div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160;</div><div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;<span class="keyword">struct </span><a class="code" href="classgrppi_1_1parallel__execution__tbb.html">parallel_execution_tbb</a> {};</div><div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;</div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> E&gt;</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#afb9c59d0d8356f37f2a09fafd6e70726">is_parallel_execution_tbb</a>() {</div><div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;}</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;</div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;} <span class="comment">// end namespace grppi</span></div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;</div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160;<span class="preprocessor">#endif // GRPPI_TBB</span></div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160;</div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="namespacegrppi_html"><div class="ttname"><a href="namespacegrppi.html">grppi</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:26</div></div>
<div class="ttc" id="namespacegrppi_html_a4f2ec5252b5fe6ed39a5a3c501b70732"><div class="ttname"><a href="namespacegrppi.html#a4f2ec5252b5fe6ed39a5a3c501b70732">grppi::requires_reduce</a></div><div class="ttdeci">std::enable_if_t&lt; is_reduce&lt; T &gt;, int &gt; requires_reduce</div><div class="ttdef"><b>Definition:</b> reduce_pattern.h:135</div></div>
<div class="ttc" id="namespacegrppi_html_adc1d261888fc60233b1289900778005a"><div class="ttname"><a href="namespacegrppi.html#adc1d261888fc60233b1289900778005a">grppi::supports_reduce&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_reduce&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the reduce pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:509</div></div>
<div class="ttc" id="namespacegrppi_html_a9a3a77a7ec35389029d4f5e35d03b5cf"><div class="ttname"><a href="namespacegrppi.html#a9a3a77a7ec35389029d4f5e35d03b5cf">grppi::is_supported&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool is_supported&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy is supported in the current compilation. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:495</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a8f404ff1f3f511dbbd3b9d92a835c63b"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a8f404ff1f3f511dbbd3b9d92a835c63b">grppi::parallel_execution_tbb::tokens</a></div><div class="ttdeci">int tokens() const noexcept</div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:119</div></div>
<div class="ttc" id="namespacegrppi_html_a9b2e3d6c560a1b30144d31c6dd7e568e"><div class="ttname"><a href="namespacegrppi.html#a9b2e3d6c560a1b30144d31c6dd7e568e">grppi::requires_iteration</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_iteration&lt; T &gt;, int &gt; requires_iteration</div><div class="ttdef"><b>Definition:</b> iteration_pattern.h:88</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a3b7d56625a7adbcade53a2f4e6052cda"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a3b7d56625a7adbcade53a2f4e6052cda">grppi::parallel_execution_tbb::disable_ordering</a></div><div class="ttdeci">void disable_ordering() noexcept</div><div class="ttdoc">Disable ordering. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:90</div></div>
<div class="ttc" id="namespacegrppi_html_afb9c59d0d8356f37f2a09fafd6e70726"><div class="ttname"><a href="namespacegrppi.html#afb9c59d0d8356f37f2a09fafd6e70726">grppi::is_parallel_execution_tbb</a></div><div class="ttdeci">constexpr bool is_parallel_execution_tbb()</div><div class="ttdoc">Metafunction that determines if type E is parallel_execution_tbb. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:486</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a1cf84926d8770fdd828998872d76cedb"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a1cf84926d8770fdd828998872d76cedb">grppi::parallel_execution_tbb::pipeline</a></div><div class="ttdeci">void pipeline(mpmc_queue&lt; InputType &gt; &amp;input_queue, Transformer &amp;&amp;transform_op, mpmc_queue&lt; OutputType &gt; &amp;output_queue) const </div><div class="ttdoc">Invoke Pipeline pattern comming from another context that uses mpmc_queues as communication channels...</div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:263</div></div>
<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
<div class="ttc" id="namespacegrppi_html_ab39b26ce38bba1d96af530ebcd807693"><div class="ttname"><a href="namespacegrppi.html#ab39b26ce38bba1d96af530ebcd807693">grppi::iterators_next</a></div><div class="ttdeci">auto iterators_next(T &amp;&amp;t, int n)</div><div class="ttdoc">Computes next n steps from a tuple of iterators. </div><div class="ttdef"><b>Definition:</b> iterator.h:175</div></div>
<div class="ttc" id="namespacegrppi_html_ae2cebb801cfe8aeed12ff8d90c3b9dd0"><div class="ttname"><a href="namespacegrppi.html#ae2cebb801cfe8aeed12ff8d90c3b9dd0">grppi::apply_iterators_indexed</a></div><div class="ttdeci">decltype(auto) apply_iterators_indexed(F &amp;&amp;f, T &amp;&amp;t, std::size_t i)</div><div class="ttdoc">Applies a callable object to the values obtained from the iterators in a tuple by indexing...</div><div class="ttdef"><b>Definition:</b> iterator.h:147</div></div>
<div class="ttc" id="namespacegrppi_html_a2c33363c4c49ab510560a0b880d52bfc"><div class="ttname"><a href="namespacegrppi.html#a2c33363c4c49ab510560a0b880d52bfc">grppi::output_value_type</a></div><div class="ttdeci">typename internal::output_value_type&lt; I, T &gt;::type output_value_type</div><div class="ttdef"><b>Definition:</b> pipeline_pattern.h:132</div></div>
<div class="ttc" id="namespacegrppi_html_aa0514650a765d4853343655e7588662b"><div class="ttname"><a href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">grppi::queue_mode</a></div><div class="ttdeci">queue_mode</div><div class="ttdef"><b>Definition:</b> mpmc_queue.h:35</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a80af61d77c7b697d90c17c203ace3ec1"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a80af61d77c7b697d90c17c203ace3ec1">grppi::parallel_execution_tbb::set_concurrency_degree</a></div><div class="ttdeci">void set_concurrency_degree(int degree) noexcept</div><div class="ttdoc">Set number of grppi threads. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:75</div></div>
<div class="ttc" id="namespacegrppi_html_ae98c8a81da78b6914d9162ae771cd180"><div class="ttname"><a href="namespacegrppi.html#ae98c8a81da78b6914d9162ae771cd180">grppi::supports_map&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_map&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the map pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:502</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_af5306d4350ef41f22215375679f72ca6"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#af5306d4350ef41f22215375679f72ca6">grppi::parallel_execution_tbb::set_queue_attributes</a></div><div class="ttdeci">void set_queue_attributes(int size, queue_mode mode, int tokens) noexcept</div><div class="ttdoc">Sets the attributes for the queues built through make_queue&lt;T&gt;() </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:100</div></div>
<div class="ttc" id="classgrppi_1_1mpmc__queue_html"><div class="ttname"><a href="classgrppi_1_1mpmc__queue.html">grppi::mpmc_queue</a></div><div class="ttdef"><b>Definition:</b> mpmc_queue.h:38</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_aa06e47a8d52617c761600c0e97db5055"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#aa06e47a8d52617c761600c0e97db5055">grppi::parallel_execution_tbb::make_queue</a></div><div class="ttdeci">mpmc_queue&lt; T &gt; make_queue() const </div><div class="ttdoc">Makes a communication queue for elements of type T. Constructs a queue using the attributes that can ...</div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:112</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a2bafc840996ea0edf704ee9a4ec11fdb"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a2bafc840996ea0edf704ee9a4ec11fdb">grppi::parallel_execution_tbb::parallel_execution_tbb</a></div><div class="ttdeci">parallel_execution_tbb() noexcept</div><div class="ttdoc">Default construct a TBB parallel execution policy. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:55</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a42cd24e4cdc65f841211797f3bc7301c"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a42cd24e4cdc65f841211797f3bc7301c">grppi::parallel_execution_tbb::parallel_execution_tbb</a></div><div class="ttdeci">parallel_execution_tbb(int concurrency_degree, bool order=true) noexcept</div><div class="ttdoc">Constructs a TBB parallel execution policy. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:67</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a218c2f8349d86349a2189be85fe0ff8a"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a218c2f8349d86349a2189be85fe0ff8a">grppi::parallel_execution_tbb::map</a></div><div class="ttdeci">void map(std::tuple&lt; InputIterators... &gt; firsts, OutputIterator first_out, std::size_t sequence_size, Transformer transform_op) const </div><div class="ttdoc">Applies a trasnformation to multiple sequences leaving the result in another sequence using available...</div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:541</div></div>
<div class="ttc" id="namespacegrppi_html_aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d"><div class="ttname"><a href="namespacegrppi.html#aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d">grppi::queue_mode::blocking</a></div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html">grppi::parallel_execution_tbb</a></div><div class="ttdoc">TBB parallel execution policy. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:44</div></div>
<div class="ttc" id="namespacegrppi_html_aefc4ab6149586d62bcb16b97bcefdd0a"><div class="ttname"><a href="namespacegrppi.html#aefc4ab6149586d62bcb16b97bcefdd0a">grppi::requires_no_pattern</a></div><div class="ttdeci">std::enable_if_t&lt; is_no_pattern&lt; T &gt;, int &gt; requires_no_pattern</div><div class="ttdef"><b>Definition:</b> patterns.h:92</div></div>
<div class="ttc" id="namespacegrppi_html_a1c6e71cb617cee8d3216b1710891a349"><div class="ttname"><a href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">grppi::requires_pipeline</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_pipeline&lt; T &gt;, int &gt; requires_pipeline</div><div class="ttdef"><b>Definition:</b> pipeline_pattern.h:111</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a5bc27958f8f59e282f991704e308c8aa"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a5bc27958f8f59e282f991704e308c8aa">grppi::parallel_execution_tbb::pipeline</a></div><div class="ttdeci">void pipeline(Generator &amp;&amp;generate_op, Transformers &amp;&amp;...transform_op) const </div><div class="ttdoc">Invoke Pipeline pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:680</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a4658679d34e759c78eed069d60aa8f8b"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a4658679d34e759c78eed069d60aa8f8b">grppi::parallel_execution_tbb::concurrency_degree</a></div><div class="ttdeci">int concurrency_degree() const noexcept</div><div class="ttdoc">Get number of grppi trheads. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:80</div></div>
<div class="ttc" id="namespacegrppi_html_a14435182a5c6532b429e9e8f09e2da37"><div class="ttname"><a href="namespacegrppi.html#a14435182a5c6532b429e9e8f09e2da37">grppi::requires_filter</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_filter&lt; T &gt;, int &gt; requires_filter</div><div class="ttdef"><b>Definition:</b> filter_pattern.h:70</div></div>
<div class="ttc" id="namespacegrppi_html_ad41d712f7093e084a84e1ea7904ddda9"><div class="ttname"><a href="namespacegrppi.html#ad41d712f7093e084a84e1ea7904ddda9">grppi::supports_divide_conquer&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_divide_conquer&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the divide/conquer pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:530</div></div>
<div class="ttc" id="classgrppi_1_1sequential__execution_html"><div class="ttname"><a href="classgrppi_1_1sequential__execution.html">grppi::sequential_execution</a></div><div class="ttdoc">Sequential execution policy. </div><div class="ttdef"><b>Definition:</b> sequential_execution.h:41</div></div>
<div class="ttc" id="classgrppi_1_1sequential__execution_html_a5b2e9b3427ba153715b527e795a296aa"><div class="ttname"><a href="classgrppi_1_1sequential__execution.html#a5b2e9b3427ba153715b527e795a296aa">grppi::sequential_execution::divide_conquer</a></div><div class="ttdeci">auto divide_conquer(Input &amp;&amp;input, Divider &amp;&amp;divide_op, Solver &amp;&amp;solve_op, Combiner &amp;&amp;combine_op) const </div><div class="ttdoc">Invoke Divide/conquer pattern. </div><div class="ttdef"><b>Definition:</b> sequential_execution.h:543</div></div>
<div class="ttc" id="namespacegrppi_html_a64dd705d0f32b64d20dba8d5b9cebbbe"><div class="ttname"><a href="namespacegrppi.html#a64dd705d0f32b64d20dba8d5b9cebbbe">grppi::result_type</a></div><div class="ttdeci">typename std::result_of&lt; Transformer(Input)&gt;::type result_type</div><div class="ttdoc">Determines the return type of appliying a function on a input type. </div><div class="ttdef"><b>Definition:</b> patterns.h:110</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_abdf53132d36c84d3744826c84cc5a454"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#abdf53132d36c84d3744826c84cc5a454">grppi::parallel_execution_tbb::divide_conquer</a></div><div class="ttdeci">auto divide_conquer(Input &amp;&amp;input, Divider &amp;&amp;divide_op, Solver &amp;&amp;solve_op, Combiner &amp;&amp;combine_op) const </div><div class="ttdoc">Invoke Divide/conquer pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:651</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_ac2e2457967b39b6514032a1f3684dfca"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#ac2e2457967b39b6514032a1f3684dfca">grppi::parallel_execution_tbb::is_ordered</a></div><div class="ttdeci">bool is_ordered() const noexcept</div><div class="ttdoc">Is execution ordered. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:95</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a584023faab673f9b7e17cec70a41372c"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a584023faab673f9b7e17cec70a41372c">grppi::parallel_execution_tbb::enable_ordering</a></div><div class="ttdeci">void enable_ordering() noexcept</div><div class="ttdoc">Enable ordering. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:85</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_afc48fec10970cf43ccf81cc7a232d577"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#afc48fec10970cf43ccf81cc7a232d577">grppi::parallel_execution_tbb::stencil</a></div><div class="ttdeci">void stencil(std::tuple&lt; InputIterators... &gt; firsts, OutputIterator first_out, std::size_t sequence_size, StencilTransformer &amp;&amp;transform_op, Neighbourhood &amp;&amp;neighbour_op) const </div><div class="ttdoc">Applies a trasnformation to multiple sequences leaving the result in another sequence. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:618</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_a0b8825810902cd26927822dcff2aed49"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#a0b8825810902cd26927822dcff2aed49">grppi::parallel_execution_tbb::map_reduce</a></div><div class="ttdeci">auto map_reduce(std::tuple&lt; InputIterators... &gt; firsts, std::size_t sequence_size, Identity &amp;&amp;identity, Transformer &amp;&amp;transform_op, Combiner &amp;&amp;combine_op) const </div><div class="ttdoc">Applies a map/reduce operation to a sequence of data items. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:574</div></div>
<div class="ttc" id="namespacegrppi_html_a6276d4cd16e1e275b617aecdc8a098e4"><div class="ttname"><a href="namespacegrppi.html#a6276d4cd16e1e275b617aecdc8a098e4">grppi::supports_map_reduce&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_map_reduce&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the map-reduce pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:516</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__tbb_html_ada3a6ccfbc59ff6d0b8c8ac1482d2bdc"><div class="ttname"><a href="classgrppi_1_1parallel__execution__tbb.html#ada3a6ccfbc59ff6d0b8c8ac1482d2bdc">grppi::parallel_execution_tbb::reduce</a></div><div class="ttdeci">auto reduce(InputIterator first, std::size_t sequence_size, Identity &amp;&amp;identity, Combiner &amp;&amp;combine_op) const </div><div class="ttdoc">Applies a reduction to a sequence of data items. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:556</div></div>
<div class="ttc" id="namespacegrppi_html_a520e1d8937fb6e0afb6e6189bd382835"><div class="ttname"><a href="namespacegrppi.html#a520e1d8937fb6e0afb6e6189bd382835">grppi::supports_pipeline&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_pipeline&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the pipeline pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:537</div></div>
<div class="ttc" id="classgrppi_1_1mpmc__queue_html_aa4e63cc8a3cc2006494b11b739711f8e"><div class="ttname"><a href="classgrppi_1_1mpmc__queue.html#aa4e63cc8a3cc2006494b11b739711f8e">grppi::mpmc_queue::pop</a></div><div class="ttdeci">T pop()</div><div class="ttdef"><b>Definition:</b> mpmc_queue.h:93</div></div>
<div class="ttc" id="namespacegrppi_html_ad4b58959f8008485515060fe1a37fb21"><div class="ttname"><a href="namespacegrppi.html#ad4b58959f8008485515060fe1a37fb21">grppi::requires_context</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_context&lt; T &gt;, int &gt; requires_context</div><div class="ttdef"><b>Definition:</b> common/context.h:95</div></div>
<div class="ttc" id="classgrppi_1_1mpmc__queue_html_aa18eda40dec95f4c568f5f40775e8e19"><div class="ttname"><a href="classgrppi_1_1mpmc__queue.html#aa18eda40dec95f4c568f5f40775e8e19">grppi::mpmc_queue::push</a></div><div class="ttdeci">bool push(T item)</div><div class="ttdef"><b>Definition:</b> mpmc_queue.h:128</div></div>
<div class="ttc" id="namespacegrppi_html_a43af869a5c133642518967b6284525af"><div class="ttname"><a href="namespacegrppi.html#a43af869a5c133642518967b6284525af">grppi::requires_farm</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_farm&lt; T &gt;, int &gt; requires_farm</div><div class="ttdef"><b>Definition:</b> farm_pattern.h:89</div></div>
<div class="ttc" id="namespacegrppi_html_af2dc49cfedd90c66ef95daef9624f2ac"><div class="ttname"><a href="namespacegrppi.html#af2dc49cfedd90c66ef95daef9624f2ac">grppi::supports_stencil&lt; parallel_execution_tbb &gt;</a></div><div class="ttdeci">constexpr bool supports_stencil&lt; parallel_execution_tbb &gt;()</div><div class="ttdoc">Determines if an execution policy supports the stencil pattern. </div><div class="ttdef"><b>Definition:</b> parallel_execution_tbb.h:523</div></div>
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